39 
Sec. 36.— The tanagers, one of the most beautiful of the 
groups of strictly American birds; the weaver birds, American 
orioles and, lastly, the sparrows, finches and grossbeaks. These 
latter are the most highly specialized in the class birds. 
Center Cases. 
Case A. — A group composed of an adult African ostrich, a 
chick and an egg. 
Case B.— A group illustrating the very extraordinary do- 
mestic arrangements of the rhinoceros hornbill during the breed- 
ing season. 
Cases C and D.— Collections of the nests and eggs of na- 
tive and exotic birds. 
HALL 27 
NORTH AMERICAN ORNITHOLOGY. 
Devoted exclusively to North American birds with an idea of 
giving special prominence to the ornithology of Illinois. The ar- 
rangement followed, that adopted by the American Ornithol- 
ogists’ Union in their check list of North American birds, begins 
at the right hand, entering from Hall 26 and continues from right 
to left. The family groups being exhibited in vertical series in 
the various sections of the wall cases. 
Wall Cases. 
Se C . 1. — The diving birds— grebes, loons and auks. 
Secs. 2, 3 and 4. — The long-winged swimmers, jaegers, 
gulls, terns and skimmers. 
Sec. 5 . — The tube-nosed swimmers, albatrosses, fulmars and 
shearwaters and the totipalmate swimmers. 
Sec. 6.— Gannets, darters, cormorants, pelicans and man- 
o’-war birds. 
Secs. 7, 8, 9, lO, 11, 12 and 13.— Ducks, geese and 
swans. Special attention is called to the fine pair of now extinct 
Labrador duck. 
